/* 重置一些默认样式 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #71b7e6, #9b59b6);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 24px;
    color: #333333;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #555555;
    font-size: 14px;
}

.input-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #cccccc;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: #71b7e6;
    outline: none;
}

.login-button {
    width: 100%;
    padding: 12px;
    background-color: #71b7e6;
    border: none;
    border-radius: 4px;
    color: #ffffff;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-button:hover {
    background-color: #4a90e2;
}

.signup-link {
    margin-top: 16px;
    text-align: center;
    font-size: 14px;
    color: #666666;
}

.signup-link a {
    color: #71b7e6;
    text-decoration: none;
    transition: color 0.3s;
}

.signup-link a:hover {
    color: #4a90e2;
}